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A number of indentical cells, n, each of...

A number of indentical cells, n, each of emf `epsilon`, internal resistance r, connected in series are charged by a d.c. source of emf `epsilon'` , using a resistor R.(i) Draw the circuit arrangemnet. (ii) Deduce the expression for (a) the charging current and (b) the potential difference across the combination of the cells

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